ipip/rtnl: add IFLA_IPTUN_PMTUDISC on dump

[karo-tx-linux.git] / net / ipv4 / ipip.c

diff --git a/net/ipv4/ipip.c b/net/ipv4/ipip.c
index 4be88cc9895782ca95d04a1b4dde3f31a0db52b8..1fc0ea4786b933c8618fc39234eb5c5800a4d3ce 100644 (file)
--- a/net/ipv4/ipip.c
+++ b/net/ipv4/ipip.c
@@ -835,6 +835,8 @@ static size_t ipip_get_size(const struct net_device *dev)
                nla_total_size(1) +
                /* IFLA_IPTUN_TOS */
                nla_total_size(1) +
+               /* IFLA_IPTUN_PMTUDISC */
+               nla_total_size(1) +
                0;
 }
 
@@ -847,7 +849,9 @@ static int ipip_fill_info(struct sk_buff *skb, const struct net_device *dev)
            nla_put_be32(skb, IFLA_IPTUN_LOCAL, parm->iph.saddr) ||
            nla_put_be32(skb, IFLA_IPTUN_REMOTE, parm->iph.daddr) ||
            nla_put_u8(skb, IFLA_IPTUN_TTL, parm->iph.ttl) ||
-           nla_put_u8(skb, IFLA_IPTUN_TOS, parm->iph.tos))
+           nla_put_u8(skb, IFLA_IPTUN_TOS, parm->iph.tos) ||
+           nla_put_u8(skb, IFLA_IPTUN_PMTUDISC,
+                      !!(parm->iph.frag_off & htons(IP_DF))))
                goto nla_put_failure;
        return 0;